package com.hnnou.freshmenappserver.service;

import com.hnnou.freshmenappserver.bean.Announcement;

import java.util.List;

public interface AnnouncementService {
    public List<Announcement> findAll();

    Announcement selectById(Integer id);

    int deleteById(Integer id);

    int update(Announcement announcement);

    int insert(Announcement announcement);
}
